package org.relaxng.datatype;

/**
 * A Datatype library
 * 
 * @author <a href="mailto:jjc@jclark.com">James Clark</a>
 * @author <a href="mailto:kohsuke.kawaguchi@sun.com">Kohsuke KAWAGUCHI</a>
 */
public interface DatatypeLibrary
{

  /**
   * Creates a new instance of DatatypeBuilder. The callee should throw a
   * DatatypeException in case of an error.
   * 
   * @param baseTypeLocalName
   *        The local name of the base type.
   * @return A non-null valid datatype object.
   */
  DatatypeBuilder createDatatypeBuilder (String baseTypeLocalName) throws DatatypeException;

  /**
   * Gets or creates a pre-defined type. This is just a short-cut of
   * <code>createDatatypeBuilder(typeLocalName).createDatatype();</code> The
   * callee should throw a DatatypeException in case of an error.
   * 
   * @return A non-null valid datatype object.
   */
  Datatype createDatatype (String typeLocalName) throws DatatypeException;
}
